yashsingh1/xdaforums huggingface dataset:
[Nexus 7 General] max414:
[MENTION=4576031]Kuchar09[/MENTION]

hey kuchar, been following your thread for a couple of weeks now, imported the fio dac, OTG-y and usb hubs as well as got usb rom on.

i recently bought a griffin car charger that promises 2A per usb slot.

though i have serious power issues.

when i hook the nexus to the OTG-Y cable and connect one end to the FIO DAC and the other to the 2A usb slot of the griffin car charger.

FIO powers up shows the blue light and then after 5-10 sec it shows disconnected and the rom doesnt detect the device anymore

what am i doing wrong?

do i need the FIO to be in a constant externally usb hub to work ?

are there specific usb hubs that i need to go out and buy?

do i need to make changes to the charger point in the car for the griffin car charger to draw the power properly?

does USB rom allow hosting and charging to the extent that the device powers up a USB hub along with other usb slave devices with full brightness and navigation and music playing simultaneously?

please answer my queries at the earliest. iv ripped my car dash half way through :P

regards
[Nexus 7 General] zx3-hst:
Looks great!
[Nexus 7 General] max414:
Bump

Any help mates ?
[Nexus 7 General] gregthomas129:
I'd say ditch the 2 amp charger. I had problems with a 3 amp charger... switched to a 5 amp and a lot of the issues disappeared.
[Nexus 7 General] Kuchar09:
Hey man I'm sorry I didn't respond sooner but this semester has been crazy busy.

Hummm well for starters I would try the fio on a computer first to make sure its not defective first.

If it works fine try testing it with the tablet inside your house with the y cable, fio with headphones, nexus 7, and the OEM charger. With this it should work just fine!

If your still having issues try running something else on the y charger like streaming a movie off a flashed drive to see if you might have a bad cable.

I had my whole setup tested with the OEM charger but will need more amperage to keep the tablet charged while in use but will work fine for testing.

I know how annoying this can be but you just gotta keep testing everything yo eliminate possible issues. I tested everything for like 2 weeks before I got around to installing my setup but of course I still ran into problems.

In reality 2 amps should be enough to test everything in your car to see if it works so I feel like something has to be defective. Hope I am wrong and its something silly!

If you have anymore questions feel free to ask and I try my best to respond ASAP!! Hopefully after finals on Wednesday I'll actually have some free time to organize/ update my OP and get most the info in one spot.
[Nexus 7 General] max414:
Cheers mate

---------- Post added at 03:53 PM ---------- Previous post was at 03:49 PM ----------

@all

Need a few suggestions now

I find changing volume and tracks difficult Cx I have to draw my attention of the road

I was hoping for a Bluetooth remote that could be hooked to my steering wheel or follow the steering control guide

The other thing is I need an equalizer by which I can independently manage the output of the sub

Ps

I would also love it if I can make my ps3 dual shock controller work over Bluetooth

Any tips, help is welcome

Regards
[Nexus 7 General] Kuchar09:
Do you have steering wheel controls? If so you should look into the joycon exr that way you can use your volume n track buttons on your steering wheel with your tablet. I believe I have videos of it in action in the op. Link for amazon below.

http://www.amazon.com/gp/aw/d/B00CHXAV1Q/ref=mp_s_a_1_1?qid=1386941102&sr=8-1

I finally caved a few months ago n bought the clarion equalizer EQS746 and love it!!! But of course there are plenty of options.

http://www.amazon.com/gp/aw/d/B000EZV3T8/ref=mp_s_a_1_1?qid=1386941125&sr=8-1

Never messed with a ps3 controller but doesn't it just connect over Bluetooth then you can use it? Maybe you need an app or something.
[Nexus 7 General] max414:
@OP

Update : got the dual shock working

U need an app called six axis controller for that

Once installed, it automatically configures and maps buttons so most games work innate
[Nexus 7 General] Izzmeister1978:
Still having Issues

Hello guys, I'm still having crazy issues with RAM on my N7. I newly installed the stock kernel and rom and completely wiped the device giving me a fresh start. Installed usbrom and kernel, everything works perfectly but I still have an issue with what appears to be ram consumption. If I reboot the N7 and start using just google maps and poweramp let's say, after I turn off the car a few times and trigger the pwrevent manager on usbrom the ram starts to climb. To a point where I have to reboot it at least 3-4 times daily. I have read elsewhere that ram consumption should be high for an android device but don't think that's 100% accurate. My N7 starts to get really, really slow and apps don't open, etc, they start to misbehave like poweramp will start skipping parts of a song, etc. When I look in the apps section under settings I see that the ram usage is at about 900-1000 range....basically something is eating my ram. Once its rebooted it goes back to the 500-600 range and works good there but then will creep back up fast. In the apps section of settings I see that the running and cached apps really aren't very many....it doesn't make sense to me at all and don't think u guys have had these types of issues......should I get a new N7 2012? maybe it's physsical? I don't know...is there a log i can look at or something....it's really becoming unbearable and I dont have another choice....this is the only android tablet with a great rom and kernel for fixed installations......please give me any feedback htat you can....this has been driving me nuts for months and months now. I have even tried stopping all my services or most of them and killing cached apps, it puts a small dent say from 900 used to 840mb then it starts to climb...I don't understand and more than frustrated......please please I'm asking anyone to help me out with this. Thank You!
[Nexus 7 General] gregthomas129:
You said you "installed usbrom AND kernel"... Are you installing them separately? The Usbrom file includes the kernel so you should not install a kernel separately. Doing so will cause exactly what you describe.
[Nexus 7 General] Izzmeister1978:
I installed the usbrom and kernel as a package...the ROM brings everything right? So all I have to do is use something like twrp to install the usbrom package that has kernel and rom together....then GAPPS and Im done....thats exactly what I did.
[Nexus 7 General] gregthomas129:
That is correct, flash the usbrom package and gapps only. Are you restoring backed up apps from Titanium Backup?
[Nexus 7 General] Izzmeister1978:
Yes, I restore from titanium back up and then install nova settings and everything else.
[Nexus 7 General] gregthomas129:
Try a clean install and then reinstall all your apps from the play store. I know it's a pain in the ass but it would eliminate a problem app with corrupt data or some such.
[Nexus 7 General] Xyleme:
Sorry if it's not the right place to ask that question.

I'd like to use a nexus 7 as a car unit.

I already have a 1din car unit with usb host and audio in (jack).

My plan is to use a audio cable to connect the audio out of the nexus to the audio in of my built-in car unit so that all the sound coming from the nexus will get out throught the built in car loudspeaker.

I plan to charge the nexus with a car charger.

From what I've understand, if I get an OTG host Y cable and a USB/UVC (easycap or febon 100), I'll be able to get the signal from any rear/back up camera ?

If I connect the camera with the rear/back up light of my car, will I be able to get automatically the video signal when I put the reverse gear (using Timor kernel on a 2012 nexus or that kernel or CM11 on a 2013 edition.

If not is that possible / how ?

The nexus 7 will not be permanently mounted in my car.

Sorry for my bad english. Thx in advance for your replie !
[Nexus 7 General] xdafoundingmember:
You will need a joycon to enable the app. ....it's the only way to get the reverse Signal to launch the app

I have mine so the camera is always posted then I just open dashcam manually. ...
[Nexus 7 General] Xyleme:
Ok opening the app manually isn't a pb.

So you confirm a nexus 7 (2012 or 2013) + an easycap + any back up cam will do the trick ?
[Nexus 7 General] xdafoundingmember:
I can confirm nexus 7 2012 works with febon 100 Vic video grabber and pretty much any reverse cam with standard output and I use timers Rom. ....I tried an radical but it did not work
[Nexus 7 General] Kuchar09:
Actually you don't need the joycon to open the app anymore.

In the thread that has all the necessary stuff to get the easycap to work with Timur's ROM they have actually modified the carcam app (not sure that's what its called been awhile) to automatically open when a video feed is found aka when your in reverse and the camera turns on.

Of course this was all like 3 months ago when it was buggy but I'm sure they have it working better by now.
[Nexus 7 General] MetalMan2:
Yep, it's definitely working much better now, and it seems there is support for Easycap clones too!

http://rootzwiki.com/topic/39717-kernel-module-cm-101-easycap-module/page-38
[Nexus 7 General] max414:
Can you shed some light here

Which version of which app is working fully ?

And should i use easy cap or febon 100 ?

I want cheap and working :D

Do they work when plugged in a hub ?

Any cam would work right?
[Nexus 7 General] xdafoundingmember:
Are u sure it's every easy cap 9r just the stk116 chipset?
[Nexus 7 General] max414:
Dear members ,

I desprately need a working rear cam solution

I m really confused

Some say i need usb pc webcam

Some say i need easy cap device and then connect oem camera to easy cap device

Ps: i m gonna connect it via hub (not externally powered)

And if this serves the purpose or not ? Please guys a bit guidance required

http://www.symbios.pk/usb-easy-capt...tml[URL]
[Nexus 7 General] xdafoundingmember:
Uvc compatible webcams work. .

Only a few seascape work from what I know they need a certain chipset. ...

I used a febon 100 video grabber and a standard reverse cam
[Nexus 7 General] Zackcez:
[MENTION=4576031]Kuchar09[/MENTION] I recently read through the entire thread, but have a few basic questions. Is a cooling fan actually necessary? Also my car currently has a factory six channel amp that has six (low-line level?) Inputs. I would like to use this for my main speakers yet and also have rca outputs for sub's. I'm not looking to spend a lot; I basically want a good power output as well.

Is an external eq device necessary, or is it something they can be done with reasonable quality via an app?
[Nexus 7 General] Kuchar09:
Thanks for reading the whole thing and I'm sorry I haven't updated the OP yet.

I would say that a fan would probably be unnecessary since I don't think I've seen anyone else do it. I was just worried about in the summer. It does help keep the temps down but is probably not needed.

When I first did my setup I took the RCA's to my 4 channel amp then used RCA outputs on that for my subs amps. I used an app called equalizer which is mad by smart android apps. It has a bass booster slide in the effects setting. It worked decent but I could never get the bass low enough for when my parents were in the car. So I would probably try the app and see if its good enough for you and if not invest in quality equalizer. In all honesty I feel it is one of the best investments I made in this whole project! Since I can easily adjust everything and my friends can plug in their iPods when the get sick of my music. :P

Hope that helps!! Be sure to take pictures when your done and have a great day!!!

Oh and of course if you have any other questions feel free to ask!
[Nexus 7 General] Zackcez:
Thanks for the reply! Have you looked into using DVB for a television signal? Or is that something that's implausible.

I also have a built-in aux port in my center console compartment; I had a brief basic idea of making it functional where if it has an input signal it would then take the input from that instead via a relay or something similar. I don't quite recall seeing much about this throughout the thread-so would that be practical or is there a better method already thought of?
[Nexus 7 General] Kuchar09:
I actually have a DVB-T tuner I uses sometimes for FM radio. I've heard of people outside the US being able to use it to get TV. Unfortunately it isn't possible in the US since they switched to digital stations.

Umm honestly not really sure how to go about an aux port. I would imagine that behind the radio it prolly has RCA's going to it or maybe a 3.5mm. By trying to make it activate when plugged in I have no clue, sorry. Which is prolly why you didn't see it in the thread lol. Other than going through the equalizer I'm not really sure how to go about an aux input. Maybe someone else has a better idea.

I'm taking off for a snowmobile trip in a couple hrs for the next 3 days but I'll do my best to reply if I actually have service!
[Nexus 7 General] Zackcez:
Kind of a vague idea but if anyone has any ideas please feel free to share. So after seeing this thread and all you could do I was quite impressed but there's still more functionality that can be used I believe... For instance my car would require relocation of my heated seat buttons in order to install a double din-which would be no problem but I'd like to explore some options.

So I did a quick search for an android activated relay and some something along these lines: http://www.controlanything.com/Relay/Relay/ANDROID_RELAY-STANDARD which would be almost perfect. Basically I'm looking for a way to activate a power source via an app- this definitely fits the criteria but is a little more pricey. So basically I'm wondering if anyone knows of any different alternatives (possibly integrating a raspberry pi?). Again I know it's a very vague idea but I think it could provide quite a bit of different functions with some thinking. I did find some cheaper options as well but am just curious if anyone has any addition input.
[Nexus 7 General] Kuchar09:
Good luck on the hunt! Not gunna lie that would be bad ass. I can just imagine hooking that up to AC controls or something.
[Nexus 7 General] gregthomas129:
Hmmm, I like this idea and you are right there are more possibilities... like remote start from an app... Hmmm
[Nexus 7 General] Zackcez:
Exactly, after a bit of looking into it-it appears http://arduino.cc is the best option.

Viper already has remote start but it's a pretty steep price compared to something like this. Of course remote start wouldn't be very realistic with today's systems. But for instance it would be extremely easy to run a relay start in an older vehicle. The possibilities are quite endless.
[Nexus 7 General] gregthomas129:
[MENTION=3689623]Zackcez[/MENTION] Check this thread out, seems he's on to the same idea as you. I checked out his frontend app called Lydia and it has buttons for heated seats. He also uses an Arduino. Looks like he hasn't been active in it for a while though.

http://www.mp3car.com/android/155941-building-an-android-frontend.html
[Nexus 7 General] Zackcez:
Thanks for an example, I wasn't able to find much that actually went that in depth.

Thats basically what I'm aiming for. A graphical interface app to control it all would be of interest to me.

I'm trying to get a lot of research in before I rip everything apart. I'll be doing it on a BMW e90 and there's little support for adding aftermarket head units let alone a complete upgrade such as what I have in mind.

So far I have the majority of my framework in mind but the last thing would be can bus integration for gas milage display etc. I'm not quite positive how it works but it's all in the factory radio already so the wires are there.
[Nexus 7 General] gregthomas129:
Cool, I'm very interested in this but I know nothing about programming. I am very well versed in electronics and I already have my tablet installed in my Mustang so I can do some testing for you if it would help. I'll be following this.
[Nexus 7 General] andyzhengster:
New NEXUS 7 had embedded UVC driver on Android 4.3 OS.

That means uvc webcam can directly plug into your Android 4.3

please download " dashcam" from google play.

1. FEBON168 UVC HDMI grabber card work on NEXUS7 (android 4.3) without root

It is up to 1280X720 hdmi source. hdmi source become UVC

2.FEBON100 UVC CVBS grabber card work on NEXUS7 (android 4.3) without root
[Nexus 7 General] Xyleme:
That's a good news. Does it work with easycap ?
[Nexus 7 General] andyzhengster:
No it is NOT easycap.

You can find out many Youtube demo about UVC grabber card + NEXUS7 If you search " FEBON168 UVC HDMI grabber card" in Youtube.
[Nexus 7 General] Ryan_Mc:
Thanks. I just got my joycon exr and am starting play and looks like it will do exactly what I need. One BIG problem is though is that (since it emulates a KB) the soft keyboard doesn't come up anymore. How did you get around this?
[Nexus 7 General] Kuchar09:
I set tasker to bring up the setting input method for certain app I know I'll need the keyboard for and then you just flick the switch off for physical keyboard, but your steering controls still work. Apparently someone said that tasker can automatically do that but I haven't been able to figure it out.

My current problem is that I'm using external keyboard helper for keyboard shortcuts to launch certain apps via my steering buttons, but when using this as your keyboard setting you can't turn physical keyboard off in order to use the virtual keyboard. Instead I have to switch my keyboard settings back to androids keyboard and turn off physical keyboard.

I have tried to talk to the developer about this and says he plains to add a virtual keyboard in the future but it isn't on the top of his priorities.

Thats all the info I have right now... hopefully I didn't confuse you too much.
[Nexus 7 General] Lockeskidney:
Is this the only rom that is working with usb audio right now?
[Nexus 7 General] Kuchar09:
t's actually not in the rom its in the kernel. I believe there are a few kernels that support DAC, two that I know off the top of my head is Timurs and FAUX.
[Nexus 7 General] Lockeskidney:
Have you tried both? If so are they the same
[Nexus 7 General] Kuchar09:
Yes I'v used both. Timurs is more for a fixed car installation since he has OTG charge set on upon boot. Where FAUX is not set as OTG charge you have to do it yourself, but FAUX is more of a performance kernel since you can overclock and what not... Just not ideal for a fixed car installation.
[Nexus 7 General] Hydro8:
Which cam do you recommend ?
[Nexus 7 General] Kuchar09:
Here is the list of compatible cameras. LIST

I'm not sure of the exact model I'm using since a friend gave it to me and it worked so I used it. I know the make is Logitech though.
[Nexus 7 General] Ryan_Mc:
Kuchar, sorry this is going more off topic but how are you having tasker sense the input from the joycon? AFAIK the joycon emulates a KB but there is no option that I've found in tasker or tasker help files, even google only pulls up one instance (which no resolution was found). So how are you doing it?

Also you mentioned you talked to a dev... for tasker? I'm just after android not disabling the virtual KB.
[Nexus 7 General] Kuchar09:
I was only using tasker for the camera button. for volume and track buttons you just set them as a key on your keyboard and then modify the keylayout file for that key to be what you want.

For my app buttons I'm using external keyboard helper and setting keyboard shortcuts within the app.

The dev I talked to was the one for the external keyboard helper. He is the one that says he is thinking about adding a virtual keyboard because using his app for the keyboard shortcut you lose the virtual keyboard unless you change the layout.

To solve this I'm currently using a mini Bluetooth keyboard.

If you need anymore help feel free to ask!
[Nexus 7 General] nu!me!:
Great work...will follow with interest...

I still don't understand how you connect and use joycon to use wheal controls ?

is it connected to nexus via usb ?

is there any guide how to setup joycon for ''dumies'' ?

You have nexus 7 connected to external usb ... changing volume on nexus, in software, you control usb dac volume ?

Can you drow some connection diagram ? (if you have time)
[Nexus 7 General] Kuchar09:
Yes the joycon is connected to a hub in the dash. the joycon also taps into my steering controls.

Using the joycon software on your laptop you set up each button as a key using the virtual keyboard in their software. If the key you want isn't available you need to set it as a key you will remember and edit that keys action in the keylayout file.

Not much to it honestly. I could make a video sometime if people want.
[Nexus 7 General] Kuchar09:
Oh and I also just got my DVB-T tuner so now I can have FM stations using the app SDR Touch, here is a video of it in action!

[YOUTUBE]kOj3R8rJMq0[/YOUTUBE]
[Nexus 7 General] nu!me!:
I think I get it...

So you have joycon connected to usb hub which is connected to nexus 7...

nexus 7 see joycon as external keyboard

via PC you configured joycon to send specific key which then nexus see as a press on usb keyboard...

tnx

---------- Post added at 07:48 PM ---------- Previous post was at 07:41 PM ----------

this is great...I didn't know there is usb DVB-T that works on android !!!

which model of tuner is it ?

are all usb DVB-T tuners work on android (is there a list) ?

I was thinking about buying nexus for in car but give up as it didn't have FM radio...but now...I think I will go for it ;)

just to find some nice front end app as centrafuse for PC...

SORRY JUST READ ABOUT APP SDR so I fegure out about FM radio...tnx
[Nexus 7 General] Kuchar09:
This is the DVB-T tuner I bought.

In the developers thread he has a list of compatible tuners.
[Nexus 7 General] Kuchar09:
I had bose also which is why I installed all new speakers to a 4 channel amp. You have to do this since I do not think there is a way to tap into your bose speakers without keeping your factory head unit. I'm sure there is but I just rather have better audio.

As far as getting power from your ignition you can easily look up your vehicles wiring diagram to find the ACC or IGN power wire to tap into for a charger. I had to get an aftermarket wiring harness in order to keep my door chimes and onstar which also had all the wires that I needed on it, as far as constant power, ign, reverse light wire, and an amp turn on lead.
[Nexus 7 General] eastside770:
what are u wiring the chimes and onstar to? i have a lot of question can we im on google talk?
[Nexus 7 General] Kuchar09:
You can wire to a random speaker and put it under your dash if you'd like.

I wired it to one of my dash tweeters that I didn't use with my new setup since I put the new tweeters in the doors.
[Nexus 7 General] eastside770:
what about all the other wires? hey can we IM on Google talk?
[Nexus 7 General] davelee1054:
Does your tablet charge using the Y splitter USB OTG cable? I want to attach a webcam using the cable you linked to but many people are saying that the device will not charge when both a USB device and the charger is connected.
[Nexus 7 General] MetalMan2:
Enter USBROM:

http://rootzwiki.com/topic/37755-timurs-kernel-usb-rom/
[Nexus 7 General] andyzhengster:
I use the general OTG usb line.

It is just US$0.8 /ea... very cheap. ( in my country)
[Nexus 7 General] davelee1054:
This is the only kernel that will do it? Cyanogen 11 will not work?
[Nexus 7 General] gregthomas129:
Well usbrom is a kernel AND ROM. Timur does have the kernel available seperately also but I think it only works with 4.2.2 which is CM 10.1. So... Timur's FI kernel with CM 10.1 should work fine.
[Nexus 7 General] layt:
Don't use cheap one. To success charge need good cooper wire. I made it myself from cheap one.